About us

What is Sigma Marketplace?

Nursing Knowledge International, doing business as Sigma Marketplace, is a wholly owned, 501(c)3 not-for-profit subsidiary of Sigma Theta Tau International Honor Society of Nursing, Inc. established in November 2002, with headquarters in Indianapolis, Indiana. We are committed to providing evidence-based knowledge solutions developed for nurses by nurses.

Our Mission

The mission of Sigma Marketplace is to provide knowledge, products, and services to develop and sustain nurse leaders anywhere to improve healthcare everywhere.

Delivering on Our Mission

The Sigma Marketplace mission is accomplished by delivering nursing knowledge that is designed to improve patient outcomes by enhancing the knowledge base of its nurse customers. Sigma Marketplace provides products and services that serve the global community of nurses in its pursuit of health care knowledge, career advancement, research, and continued development of the nursing profession. Sigma Marketplace assists the nursing profession to improve the health and education of patients and the communities in which nurses practice, lead, teach, and conduct research. Sigma Marketplace has established sales, marketing, and distribution partnerships with a wide range of nursing associations, publishers, and continuing education providers. These partners assist in expanding the reach of Sigma's high-quality products and services.

Board of Directors

Nancy E. ThompsonNancy E. Thompson, MS, RN
Martie MooreMartie Moore, MAOM, RN, CPHQ
Brooke NewmanBrooke Newman, DNP, MSN, RN-BC
Marie-Louise LuikingMarie-Louise Luiking, Ph-D Cand, MSc, BSc, RN, FFNMRCSI
Jacqueline FabricatoreJacqueline Fabricatore, BSN, RN, CPHON
Terry J. SiekTerry J. Siek, MSN, RN, NEA-BC
Cynthia D. SweeneyCynthia D. Sweeney, BSN, MSN, DNP, RN, CNOR, NEA-BC, FAAN
Gloria ChanGloria Chan, DNP, CRNA
Sigma Board Liaison